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13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

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Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
Perz Piotr, 09-06-2006 09:42
Hi everybody

I found this Asco on prev.years stem of Potentilla-erecta.

Ectal excipulum build of brown t.globulosa, at base sometimes strongly cylindrical. Subiculum negative but some syphae are presents, 1,5um thick, light brown.
Hairs hyaline/light brown/brown, septate. Marginal hyalime, thin long cells, 1-2 septate.
Asci and spores are visible on my quick-drawning. I can not found paraphyses, cause my collection is infected by konidial parasite.

I think it can be Mollisia potentillae-erectae Svrèek (1988), but on Potentilla spec. can be found also Pyrenopeziza coloradensis and Pyrenopeziza potentillae - i have not describtion of this species.

  • message #850
Perz Piotr, 09-06-2006 09:42
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
mecro

  • message #851
Perz Piotr, 09-06-2006 09:42
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
section

  • message #852
Perz Piotr, 09-06-2006 09:43
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
hairs

  • message #853
Perz Piotr, 09-06-2006 09:43
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
parasites in hymenium

  • message #854
Perz Piotr, 09-06-2006 09:44
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
quick drawnings

  • message #855
Perz Piotr, 09-06-2006 09:44
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
Svrcek diagnose

  • message #856
Perz Piotr, 09-06-2006 09:44
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
Svrcek drawning

  • message #857
Perz Piotr, 09-06-2006 09:49
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
No KOH reaction observed, only ectal excipulum changing colour from brown to +/- dark grey.

This spec looks like Pyrenopeziza, but who seens Svrcek collecrion ?? Andreas writes in his key, that M.potentillae-erectae propably is Pyrenopeziza.

Best wishes
Pimpek